Gas filaments of the cosmic web located around active galaxies in a protocluster

• DOI: 10.1126/science.aaw5949
• Publication Date: 2019-10-04T18:35:16Z
• Authors: H. Umehata; M. Fumagalli; I. Smail; Y. Matsuda; A. M. Swinbank; S. Cantalupo; C. Sykes; R. J. Ivison; C. C. Steidel; A. E. Shapley; J. Vernet; T. Yamada; Y. Tamura; M. Kubo; K. Nakanishi; M. Kajisawa; B. Hatsukade; K. Kohno
• Keywords: Cosmic web;; Cosmology and Nongalactic Astrophysics (astro-ph.CO); 500; FOS: Physical sciences; 530; Astrophysics - Astrophysics of Galaxies; 01 natural sciences; Astrophysics of Galaxies (astro-ph.GA); 0103 physical sciences; Astrophysics - Cosmology and Nongalactic Astrophysics

Glowing filaments of the cosmic web Most gas in Universe lies intergalactic medium, where it forms into sheets and web. Clusters galaxies form at intersection these filaments, fed by pulled along them gravity. Although this picture is well established cosmological simulations, has been difficult to demonstrate observationally. Umehata et al. mapped emission from medium an area around that are starting a cluster (see Perspective Hamden). They found arranged whose position velocity correlate with star-forming galaxies, supporting theoretical picture. Science , issue p. 97 ; see also 31